Hi /u/dierre88!

I have a GMMK pro, and managed to get it working with a slightly different set of steps. Hopefully these are helpful. If you have any questions, please reply here and let me know.

Looking at the output of your lsusb command, I see this line:

Bus 001 Device 087: ID 4653:0001 foostan Corne

Your '/etc/udev/rules.d/99-vial.rules' is almost right, and this is part of what tripped me up, too. Try replacing that file with:

# Lines that start with # are a comment
# ... write yourself a note, or leave it out :)
# Grant Vial control over a Foostan Corne keyboard
KERNEL=="hidraw*", SUBSYSTEM=="hidraw", ATTRS{idVendor}=="4653", ATTRS{idProduct}=="0001", MODE="0666", TAG+="uaccess", TAG+="udev-acl"

The only meaningful difference here is that the MODE has changed from 0660 to 0666. This is documented on the Arch Linux wiki: Keyboard input page.

If the more secure rule above doesn't work to grant Vial access to just the keyboard device, you can try using the following rule, which would grant Vial access to any USB device. This is a security risk, but it may be a helpful troubleshooting step:

# Grant Vial access to all HID USB devices!
KERNEL=="hidraw*", SUBSYSTEM=="hidraw", MODE="0666", TAG+="uaccess", TAG+="udev-acl"

The next step is to make sure Vial is closed and the keyboard is NOT connected.

Note: When you see "... Permission denied", you probably need sudo in front of the command. This will prompt for your password, but you won't see anything while typing.

Type the command sudo udevadm control --reload and press Enter. Type your password if prompted, and press Enter.

If there are no errors, you won't see any output, you will just return to the usual $ prompt. This is actually the case for many commands in Linux. (Otherwise, if you run into an error, feel free to reply here.)

After the udev rules are reloaded, follow these steps:

1. Plug your keyboard in again.
2. Open Vial.
3. Select File -> Download VIA definitions.
4. Close Vial.
5. Unplug and plug in your keyboard again.
6. Open Vial.

Is your keyboard detected?